Improvement in car-seat locks



UNITE States GORGE MCGREGOR, OF CINCINNATI, OHIO.

IMPROVEMENT IN CAR-SEAT LOCKS.

Speeitication forming part of Letters Patent No. LMBJRS, dated September 29, 1863.

To all whom it may concern:

Beit known that I, GEORGE MCGREGOR, ot Cincinnati, in the county ot' Hamilton and State of Ohio, have invented a new and lmproved Car-Seat Lock; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification, in whichm Figure l represents an inside elevation of my invention. Fig. 2 is a longitudinal section or my invention taken in the plane indicated by the line .fr 0c, Fig. 1. Fig. 3 is a transverse section of the same, the line y y, Fig. l, indicating the plane of section.

Similar letters ot' reference in the three views indicate corresponding parts.

The object of this invention is a latch peculiarly adapted for locking the backs ot' carseats in either position in which the same may be brought, and arranged in such a manner thatthe same can be made at a trilling expense, requiring` a comparatively small quantity of metal, and that it is strong', durable, and not liable to get out of order.

The nature of my invention and its particular advantages will be readily understood fiom the following description A represents a case, cast ot' brass or any other suitable material, and provided with three (or more) holes, a, to admit screws, which serve to fasten the same to the desired spot. A recess, b, in the front end of the case forms the guide for the head of the bolt B, the body of which is situated in the cavity c, and a bridge, d, forms the guide for the shank e ot' said bolt. A shoulder, j', behind the head ofthe bolt prevents thesame shooting out any farther than desirable, and a spiral spring, g, which is wound round the shank e, has a tendency to force the bolt out. The head ot` the bolt, is iiat and beveled or rounded oif both ways, so that it drops into a suitable catch both ways with equal facility. The force of the blows as the bolt strikes the catches on either side is exerted edgewise, and consequently a comparatively thin bolt is able to withstand said blows without injury.

The key C is made hollow, and it is intro duced through the key-hole h in the case, being guided by the pin t'. This pin is cast solid with the case, and it is cut out and rounded off by a suitable cutter. It projects from a lug,j, on the inner side ofthe case, and it is tiled oft' flush with the outer surface of said case.

The bit k of the key is made with two shoulders, as clearly shown in Fig. 3, and it acts on a recess, l, in the body of the bolt. This body is hollowed out to make room for a pin, m, which projects from the interior ot' the case. If a key should be inserted into the latch with a bit ot' different shape from that shown in Fig. 3, said bit will strike the pin on, and the unlocking` of the latch is pr vented. 'The proper shape ot' the 'uit is dependent upon the position of the lug j and pin m in relation to each other, and by the position ofthe lug j it is indispensable that the bit shall project beyond the end ofthe shank of the key, so that its point is enabled to come in contact with the recess l in the body of the bolt.

This latch is particularly intended to be at-l tached to the arms on which the backs of carseats swing, and it serves to secure the back ot' the seat in either position. It is obvious, however, that it may be used for locking or fastening other articles besides car-seats, and on account of its great `cheapness it can be applied with advantage, to take the place of other latches of a more expensive or less durable construction.

What I claim as new, and desire to secure by Letters Patent, is-

'The arrangement and combination of the case A with lugj and pin m, hollow key C, with double-shouldered bit lc and spring-bolt B, all constructed and operatin g in the manner and for the purpose shown and described.

GEORGE MGGREGOR.

lWitnesses:

J oHN W. ANDERsoN WV. CHEDsEY. 

